Product: Hanna Instruments 70004P Calibration Solution pH 4.01 - 5 sachets 20 ml
Calibration solution for pH meters electronic pH-value 4.01a 25 ° C.
This practice pack includes 5 single-dose sachets of 20 ml for calibration of pH value 4.01.
The solution is contained in packets ready for use: Pocket pH meters and electrodes can be inserted directly into the bag to perform the calibration.
The use of single-dose sachets ensures you always use fresh solutions and thus accurate calibration.
The sachet provides adequate protection of the solution from light and is very practical for use in field measurements.